Time evolution of damage under variable ranges of load transfer

Details Time evolution of damage under variable ranges of load transfer Time evolution of damage under variable ranges of load transfer

2002-10-05

arxiv.org/abs/cond-mat/0210119v1

Phys. Rev. E 68, 026116 (2003)

Physics

Condensed Matter

Statistical Mechanics

8 pages, 7 figures, revtex4 style

Scientific paper

10.1103/PhysRevE.68.026116

We study the time evolution of damage in a fiber bundle model in which the range of interaction of fibers varies through an adjustable stress transfer function recently introduced. We find that the lifetime of the material exhibits a crossover from mean field to short range behavior as in the static case. Numerical calculations showed that the value at which the transition takes place depends on the system's disorder. Finally, we have performed a microscopic analysis of the failure process. Our results confirm that the growth dynamics of the largest crack is radically different in the two limiting regimes of load transfer during the first stages of breaking.

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